Island



G. w. DOVER.

DEVICE FOR C ASTELLATING NUTS.

APPLICATION FILED DEC-6.1918.

PatentedSpt. 9,1919.

INLCE'NTUH TIIB COLUMBIA PLANOGRAPH cm, WASHINGTON, n. c.

D STATES PATENT curios.

enoneu WILLIAM novnn, or GRANSTON, nuonn ISLAND, ASSIGNOR To euoneu w. I

novun, ruoonrona rnn, or rnovrnuuounuonu ISLAND, A oonrona'riouou RHODE ISLAND.

To all whom it mag concern:

Be it, known that I, GEORGE WILLIAM DOVER, a citizenoflthe United States, residing at Oranston, 11111118 county of Providence and St-ate of Rhode Island, haveinvented a new and useful Improvement in Devices'for Castellating Nuts, of which the following is a specification.

, Myinvention has reference to an improvement in the manufacture of nuts, and more particularly to an improvement in a dGVlCB for castellating nuts.

In the usual method of castellating nuts the castellating is done by a revolving cutter. In a nut having six castellations it is necessaryto make three separate and distinct cuts or operations of the cutter across the nutand in a nut having eight castellations four operations of the cutter is re quired and so on, the number of cutting operations increasing with the increasing number of castellations on the nut. i

The object ofmy invention is to improve the construction of a device forcastellating nuts, whereby any number of castellations required on a nut, may be performed in one operation of the device, thereby materlally reducing the time and cost of castellatmg nuts. i

My invention eonsists in the peculiar and novel construction of a device for castellatjing nuts, said device having detalls of construction as will be morefully set forth hereinafter and claimed; H

Figure 1 is a face view of the upper mem ber.

Fig.2 is a face view of the lowerfmember.

Fig. 3 is a face view of the camfor opening and closing the. nutfholding and clamping jaws in the lower member and showing aportion of the jaws in 860131011 t 1 j Fig. 4 is a vertical sectional v ew through the upper and lowermembers 1n. the open position, and j r Fig. 5 is an enlarged detail sectional v ew through the central portion of the dev ce, showiugthe device closed, the radially sl ding nut cutting jaws open and a nut castellated' f r In the drawing 6 "lndlcats a relatively fixed lower member, 7 a movable upperjmeinber, 8 a nut before castellation and shownin section in Fig. 4, and 9 a nut after castellation and shown in section in Fig. 5. l

The lower member 6 is formed in two DEVICE FOR GASTEL LATING NUTS.

Specification of Letters Patent. 1 Patented Sept; 9, 1919 Application filed December 6, 1918. Serial 1510.265537. i i I I horizontal parts 10 andll, as shown in Fig. 4,;secured togetherby screws, as shown'in F1g.2 or other means. central hole 12 extends vertically through both parts 10 and 11 and a series of radially disposedvertical holes 13. 13, surrounds the central hole 12 and extends through both parts of the lower member. The upper part 11 has a circular groove 14 in its under face and in which is a clrcular ring cam 15 having on its upper face a continuous rib forming a series of cam members 16. 16. The cam 15 also has an operating handle 17 which extends out of the member through an opening 18, the ends of the opening forming stops, to limit the opening aiidclosing movement of the cam, asshown in Fig. 3. "The upper part 11 has a series of radially disposed undercut guideways 19. 19 in its face, in each of whichis slidably supported a nut holding and clamping jaw20. Eachjaw 20 has a vertical hole 21 coincidingwith a hole 13 in the member, alongitudinal groove 22 in its to and extending fromthe inner-end of the jaw across I the hole 21, the length of the j aw,the slot having the size and shape in cross section, of

thepiece cut out of a nut, incastellating the nut,a slight projection .23 on theinner end for holding the nut vertically and lugs 24. 24 on its underside which straddlea cam member 16 on the cam 15 as shown in Fig. 4. The inner end of the nut holding jaws 20. 20 are so formed thatwhen the jaws are in their closed positions, the jaws form aoentral opening, the size andshape of the nut to be castellated, as shownin Fig. 2.

The upper movable member 7 has a central vertical hole 25 in which is a vertically movable plunger 26 having a lower coneshaped end 27. A seriesof undercut radial guide-ways 28. 28 are cutin the. face of the upperfmember, corresponding in number and position to the guide-ways in the lower member. Each of the guideeways 28. 28 slidably support a nut cutting jaw 29 having a beveled inner end 30 fitting against the cone-shaped end 27 of the plunger 26 and an outwardlyfaced cutter 31 on the beveledend 30, formed by cutting out an adjacent portion of the jaw, as shown in Figs. 4 and 5. The cutter 31, endand face of the jaw extends outward from the face of the memberfand has a sliding fit groove22 in acoinciding nut holding jaw 20, when the members are closed. A whip .closed is slightly less than the holein the nut, as shown in Fig. 4:, so that the cutters 31. 31' may enter'the nut a predetermined distance, when the members are closed.

When in use, the nut clamping jaws 20. 20 are slightly opened, by moving the cam handle'17'to the left, anut to be castellated placed in the central opening betweeirthe jaws, the nutresting on the jaw projectlons 23. 23 and the nut clamped in, position by the jaws, by moving the cam handle l7 to the right Themembers are now closed by a V bringingthe upper member? down on to the lower member 6,, in aposition for the cutting jaws 29. 2-9 to enter the grooves 22. 22in the nut holding jaws 20. 20 and for the cutters 31.131-0n the cutting jaws to enter the hole in; the nut. The plunger 26 is now forced downward and" the cone-shaped end 27 engaging with. the beveled ends 30 0f the cuttingaws, forces the cutting aws radially outward and the cutters 31; 31 cuttin through the nut, cuts .out predetermine pieces 33-. -33 of the nut, thereby castellating the nut. The pieces33. 33 fall down through the holes '21. 21 in the nut holding jaws and the holes 13. 13' in the member into a receptacle, not shown. ,r'l he members are .then opened and the nutholding. jaws 20. 20 opened to theirlimit, by moving'the cam handle 17 to the left, thereby releasingthe 'castellated nut, which falls down through I the central hole l fZ into a receptacle, not

shown. 1 r

It is evident that any number of castellaf ti'ons may be performed on a nut by varying the numberof radial clamping and cutting jaws in the device.

Having thus claim as new z V 1. A device for castellating nuts, comprisdescribed my invention I ing a lower member having a series.' of

radial gui de-ways, a. nut clamping jaw in each gui,deway, the. inner ends of the nut clamping jaws forming, when closed, an openingtheshape and size of anut to be :castellated, an upper member having a series .of radial guide-ways corresponding in number and'position to the radial guide-ways in the lower member, a nut cutting jaw in each radial guide-way in the upper member,

each nut cutting jaw having an inner cutting end, adapted to enter a hole in a nut, means for operating the nut clamping jaws in the lowefmember and means for operating the nut cutting jaws in the upper member.

2. A device for castellating nuts, comprising a lower member having a central ver tical hole and a series of radial guide-ways,

a nut clamping jaw in each guide-way, the inner end of the jaws forming, when closed, an opening the shape and size of a nut, an upper member having a corresponding number of radial guide-ways, a nut cutting jaw in each guide-way, each nut cutting jaw having an outwardly faced cutter on its inner end adapted to enter a hole in a nut, means for operating the nut clamping jaws and means for operating the nut cutting jaws.

3. A device for castellating nuts, comprising a lower member having a central vertical hole, a series of vertical holes surrounding the central hole, and a series of radial guide-ways, a nut clamping jaw in each radial guide-way, the inner end of the jaws, when closed, forming an opening the shape of a nut, each jaw having a longitudinal groove'in its face, an upper member having a corresponding number of radial guideways, a nut cutting jaw in each guide-way, each nut cutting jaw having an outwardly faced cutter on its inner end adapted to enter a hole in a nut and to have a sliding fit in a groove in a corresponding nut clamping jaw, when the members are closed, means for operating the nut clamping jaws and means for operating the nut cutting jaws.

' 4;. A device for castellating nuts, comprising a lower member having a series of radial guide-ways in its face, a nut clamping jaw in each radial guide-way, the inner ends of the jaws, when closed, forming an opening the shape of a nut, each jaw having a longitudinal groove in its face and a nut holding projection on its inner end, an upper member having a corresponding number of radial guide-ways in its face, a nut cutting jaw in each guide-way, each nut cutting jaw having an outwardly faced cutter on its in.- ner' end adapted, to enter a hole in a nut and to have a sliding fit in a groove in a corresponding nut clamping jaw, when the die is closed, means for operating the nut clamping jaws and means for operating the nut cutting jaws.

5. A device for castellating nuts, comprising a lower member having a series of radial guide-ways in its face, a nut clamping jaw in each guide-way, the inner. ends of the jaws, when closed, forming a nut shaped opening, each aw having a longitudinal groove in its face and a nut holding projection on its inner end, a cam in the lower member and having a series of cam members, means for operatively connecting each clamping jaw with a cam member, means guide-ways in its face, a nut cutting jaw n each guide-way, each nut cutting jaw having an outwardly faced cutter on its lnner end adapted to enter a hole in a nut and to have a sliding fit in a groove in a corresponding nut clamping jaw, when the members areclosed, and means for operating the nut cutting jaws.

6. A device for castellating nuts, comprising a lower member having a central vertical hole, a series of vertical holes surrounding the central vertical hole, a series of ra-- dial guide-ways in its face, a nut clamping jaw in each guide-way forming a nut shape central opening, each jaw having a vertical hole, a longitudinal groove in its face and a nut holding projection on its inner end, a cam in the lower member and having a series of cam members, means for operatively connecting each nut clamping jaw with a cam member, means for operating the cam, an upper member having a corresponding number of radial guide-ways in its face, a nut cutting jaw in each guideway, each nut cutting jaw having an outwardly faced cutter on its inner end adapted to enter a hole in a nut and to have a sliding fit in a groove in a corresponding nut clamping jaw, when the members are closed, a coneeshaped operating plunger engaging with the inner ends of the nut cutting aws and a whip spring on the member engaging with the outer end of each nut cutting jaw,

as described.

In testimony whereof, I have signed my name to this specification.

GEORGE WILLIAM DOVER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

